It! The Terror from Beyond Space

The sole survivor of the Martian mission, Carruthers is suspected of killing his crew to preserve scarce resources. He consistently defends his innocence, attributing the deaths to a hostile life form. His calm, disciplined demeanor becomes crucial as the crew threads through fear and suspicion.

Earth project director who oversees the rescue mission and enforces the need to protect Carruthers with constant supervision. He emphasizes the danger of Mars and the possibility that Earth may bypass the Red Planet. His decisions heighten the urgency and moral stakes of the voyage.

An investigator who follows odd sounds from lower levels and becomes a casualty. His curiosity drives early attempts to locate the intruder. His death reveals the deadly reach of the alien threat.

A crew member who encounters the creature and is left in grave danger as the threat overwhelms the ship's defenses. His and his brother's experience reflect the crew's vulnerability. His death marks a turning point in the crew's resolve.

Gino's brother who witnesses his sibling's attack and fights to protect the rest of the crew. He embodies the human impulse to survive and defend others in the face of an unknown killer. His reactions underscore the emotional toll of space horror.

A hostile humanoid life form from Mars that is immune to conventional weapons. It tears through hulls and airlocks, challenging the crew's ingenuity. Its ultimate fate depends on a plan that leverages the ship's own environment against it.

A member of the broader crew network on Earth connected to the mission, whose presence anchors the humans' broader stakes beyond the ship. Her role hints at the project’s human costs and the emotional layer of the rescue effort.